From the manufacturer’s site:
The Kármán Line is a modulating joystick delay and oscillation device that features a heavily filtered, lo-fi delay line with vinyl inspired pitch modulation.
The repeats on The Kármán Line are dark and overdriven. The not-so-subtle grittiness provides the perfect tone for creating a deeply textured, lo-fi wall-of-sound. The Kármán Line was designed for glitchy experimentalists, but can find its place in many musical settings.
The Kármán Line features vinyl-esque pitch modulation centered on an all analog, light-based LFO. The modulation mimics the sound of slowing down a record player with your finger. The modulation can go from subtle to extreme, borderline obnoxious (in a good way) pitch bending.
The most intriguing aspect of The Kármán Line is the implementation of a joystick. The Kármán Line employs a delay chip that creates an audible warp as you manipulate the delay time, controlled by the Y-Axis of the joystick. The X-Axis controls the rate of modulation. – More info here.